Which of the following noble gases is abundant in air?
A. Neon
B. Helium
C. Argon
D. Methane
Submitted by :- Jamil Ahmed
CHEMISTRY
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Which of the following noble gases is not present in atmosphere?
A. Argon
B. Helium
C. Radon
D. Xenon
Submitted by :- Jamil Ahmed
For a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?
The reciprocal of the coefficent of viscosity is called__________?
A. Density
B. Specific gravity
C. Fluidity
D. Absorbance
Submitted by :- Jamil Ahmed
The science of fermentation is called _______ ?
A. Zygology
B. Zymology
C. Zymurgy
D. Zootaxy
Submitted by :- Jamil Ahmed
The Branch of chemistry dealing with brewing and distilling is called _______ ?
A. Zygology
B. Zymology
C. Zymurgy
D. Zootaxy
Submitted by :- Jamil Ahmed
What is the molecular formula for Nitric acid ________ ?
A. HNO2
B. HNO3
C. HN2O2
D. H2NO4
Submitted by :- Jamil Ahmed
The discovery of neutron became very late because _______ ?
A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus
Submitted by :- Jamil Ahmed
The absolute value of charge on electron was determined by ________ ?
What is the molecular weight of Ammonia (NH3) ________ ?
A. 17.31 g/mol
B. 18.31 g/mol
C. 19.31 g/mol
D. 27.33 g/mol
Submitted by :- Jamil Ahmed